Lion Air: a deadly crash and a whole lot of questions for Boeing

Questions swirled Wednesday about how Boeing had failed to tell airlines and pilots about changes to an anti-stall system suspected in last month's fatal crash in Indonesia. Investigators are examining whether the system, which is meant to prevent aircraft from stalling, was tied to the crash of Lion Air Flight 610. The Boeing 737-MAX plunged into the Java Sea on October 29, killing all 189 people aboard.